Halogen-free flame retarded poly(butylene terephthalate) (PBT) using metal oxides/PBT nanocomposites in combination with aluminium phosphinate
- The flame retardancy of poly(butylene terephthalate) (PBT) containing aluminium diethlyphosphinate (AlPi) and/or nanometric metal oxides such as TiO2 or Al2O3 was investigated. In particular the different active flame retardancy mechanisms were discovered. Thermal analysis, evolved gas analysis (TG-FTIR), flammability tests (LOI, UL 94), cone calorimeter measurements and chemical analyses of residues (ATR-FTIR) were used. AlPi acts mainly in the gas phase through the release of diethylphosphic acid, which provides flame inhibition. Part of AlPi remains in the solid phase reacting with the PBT to phosphinate-terephthalate salts that decompose to aluminium phosphate at higher temperatures. The metal oxides interact with the PBT decomposition and promote the formation of additional stable carbonaceous char in the condensed phase. A combination of metal oxides and AlPi gains the better classification in the UL 94 test thanks to the combination of the different mechanisms.
Autor*innen: | Emanuela Gallo, Ulrike BraunORCiD, Bernhard SchartelORCiD, P. Russo, Domenico Acierno |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Polymer degradation and stability |
Jahr der Erstveröffentlichung: | 2009 |
Verlag: | Applied Science Publ. |
Verlagsort: | London |
Jahrgang/Band: | 94 |
Ausgabe/Heft: | 8 |
Erste Seite: | 1245 |
Letzte Seite: | 1253 |
Freie Schlagwörter: | Flammability; Metal oxide nanocomposite; Metal phosphinate; Poly(butylene terephthalate) |
DOI: | 10.1016/j.polymdegradstab.2009.04.014 |
ISSN: | 0141-3910 |
ISSN: | 1873-2321 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 18.06.2009 |